Open roof assembly testing method and device

The method employs a generic control unit and sensors to determine a torque-related constant, effectively testing open roof assemblies for maximum pinch force, overcoming the challenges of lacking dedicated control units and varying vehicle types.

EP3680640B1Active Publication Date: 2025-03-05INALFA ROOF SYST GROUP
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Patent Information

Application Number
EP2019150780
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-01-08
Publication Date
2025-03-05
Estimated Expiration
2039-01-08

AI Technical Summary

Technical Problem

Testing an open roof assembly for maximum pinch force without a dedicated control unit is challenging, as it requires developing a test device for each vehicle type, which is time-consuming and costly, and may not be feasible due to legal limitations.

Method used

A method and device using a generic control unit, force sensitive sensor, drive circuitry, and sensors to determine a torque-related constant representative of the maximum pinch force, allowing for direct motor control and data collection without pre-defined parameters.

Benefits of technology

Enables efficient and cost-effective testing of open roof assemblies for maximum pinch force, predicting the pinch force without the need for a dedicated control unit, thus addressing the challenges of varying vehicle types and legal compliance.

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Abstract

A method for testing an open roof assembly comprises steps of providing a test device, the test device comprising a generic control unit, a force sensitive sensor and a drive circuitry; operatively coupling the motor drive assembly to the drive circuitry; positioning the force sensitive sensor in the roof opening; and operating the generic control unit to move the closure member from the open position to the closed position such that the closure member collides with the force sensitive sensor, to receive force data from the force sensitive sensor and to determine from the force data a system property constant. The system property constant is representative for a maximum pinch force of the open roof assembly.
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Citation Information

Patent Citations

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